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Desirable defects

A new meta-material based on colloids and liquid crystals

Introducing flaws into liquid crystals by inserting microspheres and then controlling them with electrical fields: that, in a nutshell, is the rationale behind a method that could be exploited for a new generation of advanced materials, potentially useful for optical technologies, electronic displays and e-readers. A team of scientists (including research fellows at the International School for Advanced Studies, SISSA, in Trieste) has just published a paper in the journal Physical Review Letters where they describe just how this approach works and provide the results of a computer simulation.